Echeveria plant named ‘AMIECH1913’

ABSTRACT

A new and distinct  Echeveria  hybrid plant named ‘AMIECH1913’ which is characterized by strongly concave obovate to short spatulate foliage in a basal rosette, green foliage that is lightly covered with light greyed-green epicuticular wax, and the stability of these characteristics from generation to generation.

Latin name of the genus and species: The Latin name of the genus andspecies of the novel variety disclosed herein is Echeveria hybrid.

Variety denomination: The inventive variety of Echeveria hybriddisclosed herein has been given the variety denomination ‘AMIECH1913’.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims priority to the Community Plant Variety Rightsapplication number 2019/3422, filed Dec. 17, 2019, which is hereinincorporated by reference.

BACKGROUND OF THE INVENTION

Parentage: ‘AMIECH1913’ is an interspecific hybrid seedling selectionresulting from the controlled pollination of Echeveria gilva ‘GreenGilva’ (not patented), the seed parent, with an unnamed Echeveriadesmetiana (not patented), the pollen parent. The crossing was made bythe inventor in the spring of 2017 at a commercial greenhouse inHeerhugowaard, the Netherlands. In the winter of 2017, one seedling wasobserved which exhibited unique growth and foliage characteristics. Theseedling was isolated for further evaluation in order to confirm thedistinctness and stability of the characteristics first observed. Uponconfirmation of distinctness and stability, ‘AMIECH1913’ was selectedfor commercialization.

Asexual Reproduction: Asexual reproduction of the new cultivar‘AMIECH1913’, by way of rooting leaf cuttings, was first initiated inthe summer of 2018 at the inventor's commercial greenhouse inHeerhugowaard, the Netherlands. Through three subsequent generations,the unique features of this cultivar have proven to be stable and trueto type.

SUMMARY OF THE INVENTION

The cultivar ‘AMIECH1913’ has not been observed under all possibleenvironmental conditions. The phenotype may vary somewhat withvariations in environment such as temperature, day length, and lightintensity, without, however, any variance in genotype. The followingtraits have been repeatedly observed and are determined to be the uniquecharacteristics of ‘AMIECH1913’. These characteristics in combinationdistinguish ‘AMIECH1913’ as a new and distinct Echeveria hybridcultivar:

-   -   1. ‘AMIECH1913’ exhibits strongly concave obovate to short        spatulate foliage in a basal rosette; and    -   2. ‘AMIECH1913’ exhibits green foliage that is lightly covered        with light greyed-green epicuticular wax.    -   3. ‘AMIECH1913’ exhibits durable foliage.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 illustrates, as nearly true as it is reasonably possible to makethe same in color photographs of this type, an exemplary plant of‘AMIECH1913’ grown in a commercial greenhouse in Heerhugowaard, theNetherlands. This plant is approximately 8 months old, shown planted inan 11 cm container.

FIG. 2 illustrates, as nearly true as it is reasonably possible to makethe same in color photographs of this type, the typical foliagearrangement of ‘AMIECH1913.

FIG. 3 illustrates, as nearly true as it is reasonably possible to makethe same in color photographs of this type, the adaxial surface of themature foliage ‘AMIECH1913’.

FIG. 4 illustrates, as nearly true as it is reasonably possible to makethe same in color photographs of this type, the abaxial surface of themature foliage ‘AMIECH1913’.

BOTANICAL DESCRIPTION OF THE PLANT

The following observations and measurements made in January of 2020describe averages from a sample set of six specimens of 8 months old‘AMIECH1913’ plants grown in 11 cm nursery containers at commercialgreenhouse in Heerhugowaard, the Netherlands. Plants were produced usingconventional greenhouse production protocols for Echeveria plants whichconsisted of minimal irrigation and fertilizer applications, andchemical pest and disease control measures against mealy bug andBotrytis as required. Plants were grown under approximately 50 percentshade after propagation and later exposed to full sun once they began tomature. No photoperiodic treatments or artificial light was given to theplants.

Those skilled in the art will appreciate that certain characteristicswill vary with older or, conversely, with younger plants. ‘AMIECH1913’has not been observed under all possible environmental conditions. Wheredimensions, sizes, colors and other characteristics are given, it is tobe understood that such characteristics are approximations or averagesset forth as accurately as practicable. The phenotype of the variety maydiffer from the descriptions set forth herein with variations inenvironmental, climatic and cultural conditions. Color notations arebased on The Royal Horticultural Society Colour Chart, The RoyalHorticultural Society, London, 2015 (sixth edition).

A botanical description of ‘AMIECH1913’ and comparisons with the parentplants and closest known comparator are provided below.

-   Plant description:    -   -   Growth habit.—Succulent perennial with foliage growing in a            non-branched basal rosette.        -   Plant shape.—Flattened.        -   Height from soil level to top of foliar plane.—5.6 cm.        -   Plant spread.—Average of 10.2 cm.        -   Growth rate.—Moderately fast growing.        -   Plant vigor.—Moderately vigorous.        -   Propagation.—Type — Leaf cuttings. Time to initiate rooting            — Approximately 21 days at 18 degrees Celsius. Crop time —            Approximately 35 weeks to produce a marketable plant in a 7            cm container.        -   Disease and pest resistance or susceptibility.—Neither            resistance nor susceptibility to typical Echeveria pests and            diseases has been observed.        -   Environmental tolerances.—Adapt to, at least, USDA Zones 10            to 12 and temperatures as high as 40 degrees Celsius;            moderate tolerance to rain yet drought tolerant once            established; high tolerance to wind.-   Root system:    -   -   General.—Fine, well-branched fibrous roots.-   Stems:    -   -   Branching habit.—Leaves in a non-branching basal rosettes;            no main branches or lateral branches present.-   Foliage:    -   -   Arrangement.—Rosette.        -   Division.—Simple.        -   Attachment.—Sessile.        -   Quantity.—Approximately 90 leaves per rosette.        -   Shape.—Obovate to short spatulate.        -   Dimensions.—4.8 cm long, 2.7 cm wide, and 0.5 cm thick, on            average.        -   Aspect.—Strongly concave with an upward curled apex.        -   Attitude.—Juvenile foliage at the center of the rosette is            held upward; foliage becomes progressively more relaxed            towards the outer whorls of mature foliage.        -   Apex.—Apiculate.        -   Base.—Cuneate.        -   Margin.—Entire; not undulate.        -   Pubescence, texture and luster of the adaxial            surface.—Glabrous, smooth, and matte; moderately glaucous.        -   Pubescence, texture and luster of the abaxial            surface.—Glabrous, smooth, and matte; moderately glaucous.        -   Color.—Juvenile foliage, adaxial surface — Green, nearest to            RHS NN137A; margined yellow-green, nearest to RHS 145A; the            epicuticular glaucous wax covering the leaf surface is            greyed-green, nearest to a mixture of RHS 191C and 191D.            Juvenile foliage, abaxial surface — Yellow-green, nearest to            RHS 147B; margined yellow-green, RHS 145A; the epicuticular            glaucous wax covering the leaf surface is greyed-green,            nearest to RHS 191C. Mature foliage, adaxial surface —            Nearest to in between green and yellow-green, RHS NN137A and            147A, and fading to yellow-green towards the base, nearest            to RHS 145B; margined yellow-green, nearest to a mixture of            RHS 145A and 145B, and becoming darker towards the apex,            nearest to RHS 152D; the epicuticular glaucous wax covering            the leaf surface is greyed-green, nearest to a mixture of            RHS 191C and 191D. Mature foliage, abaxial surface —            Yellow-green, nearest to a mixture of RHS 147A and 147B;            fading lighter towards the base, nearest to RHS 146D;            margined yellow-green, nearest to a mixture of RHS 145A and            145B, and becoming darker towards the apex, nearest to RHS            152D; the epicuticular glaucous wax covering the leaf            surface is nearest to greyed-green, nearest to RHS 191C.            Venation — No venation is visible.        -   Petiole.—No petiole; leaves are sessile.-   Inflorescence: No flowering has been observed to date.

Comparisons with the Parent Plant and Closest Known Comparator

Plants of the new cultivar ‘AMIECH1913’ differ from the seed parent,Echeveria gilva ‘Green Gilva’ (not patented), in the followingcharacteristics described in Table 1 below.

TABLE 1 Characteristic ‘AMIECH1913’ ‘Green Gilva’ Plant size. Largerthan the parent. Smaller than ‘AMIECH1913’. Foliage size. Larger thanthe parent. Smaller than ‘AMIECH1913’. Foliage aspect. Strongly concave.Flat; not concave. General coloration Green and lightly Green. of thefoliage suffused with greyed- green.

Plants of the new cultivar ‘AMIECH1913’ differ from the pollen parent,an unnamed Echeveria desmetiana plant (not patented), in the followingcharacteristics described in Table 2 below.

TABLE 2 Characteristic ‘AMIECH1913’ The pollen parent. Foliage aspect.Strongly concave. Flat; not concave. General coloration Green andlightly suffused Greyed-white. of the foliage. with greyed-green.Foliage durability. More durable than the Less durable than parent.‘AMIECH1913’.

Comparisons with the Closest Known Comparator

Plants of the new cultivar ‘AMIECH1913’ differ from the closest knowncommercial comparator, Echeveria hybrid ‘Imbricata’ (not patented), inthe following characteristics described in Table 3 below.

TABLE 3 Characteristic ‘AMIECH1913’ ‘Imbricata’ Foliage aspect. Stronglyconcave. Flat; not concave. General coloration Green and lightlysuffused Blue-green. of the foliage. with greyed-green. Foliagedurability. More durable than the Less durable than parent.‘AMIECH1913’.

That which is claimed is:
 1. A new and distinct variety of Echeveriahybrid plant named ‘AMIECH1913’, substantially as described andillustrated herein.